Answer:
There were 30 questions on the test.
Step-by-step explanation:
1. Set up your equation: 27/90 = y/100
2. Next you want to cross multiply: 2700 = 90y or 270 = 9y
3. Divide 270 by 9 to find your y: y = 30
There were 30 questions on the test.
Answer:
12x12
Step-by-step explanation:
12x12=144
Answer:
whats the login :)
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given



Required
Area of triangle
This is calculated as:

This gives:



--- approximated